Question

A current carrying conductor is placed as shown infigure. The magnitude of magnetic field at point Pwill be-​

Answer 1

Answer:

Take a thick straight conductor XY and pass it through the centre of a thick cardboard. Pass current through the conductor such that it flows from X to Y. Sprinkle some iron filings on the cardboard and gently tap. You will see that the iron filings arrange themselves in concentric circles around the wire.